Company overview. Technology Properties Limited LLC ("TPL"), also known as The TPL Group, is a privately held California company founded in 1988 and based at 20883 Stevens Creek Blvd., Cupertino, California (courts and the ITC record the Cupertino address; PitchBook lists a Santa Clara office). In its 2019 U.S. Supreme Court Rule 29.6 corporate disclosure, TPL stated it has no parent corporation and that no publicly held company owns 10% or more of it. It is distinct from the publicly traded Patriot Scientific Corporation (OTC: PTSC), whose filings describe it as an equal partner in the related patent venture. No reliable public headcount or revenue figure is available.
Operations. TPL describes itself as a coalition of high-technology enterprises, but its documented activity is patent monetization rather than product sales. Through its licensing arm Alliacense, TPL commercializes the Moore Microprocessor Patent (MMP) Portfolio—seven U.S. patents plus European and Japanese counterparts covering microprocessor clocking, multiple instruction fetch, and multi-core/embedded-memory design—jointly held with Patriot Scientific through the Phoenix Digital Solutions joint venture. It has also asserted a separate CORE Flash Portfolio. Licensees have included Sony, Nokia, HP, Fujitsu, and Ford. It is best characterized as a non-practicing licensing entity/shell.
Litigation posture. Effectively one-directional NPE assertion. The case list shows 2 plaintiff and 2 defendant appearances, but the two "defendant" matters are declaratory-judgment actions filed by HTC and Acer to preempt TPL's infringement demands. TPL's affirmative infringement suits were filed in the Eastern District of Texas (2008), a plaintiff-friendly venue, and it also pursued ITC relief. This is not a two-way operating-company litigant.
Notable cases. HTC v. Technology Properties (N.D. Cal.) produced a jury finding that HTC infringed the '336 patent, with a lump-sum royalty of $958,560. TPL's 2012 ITC/N.D. Cal. campaign against Huawei, Samsung, LG, Nintendo, and ZTE ended in stipulated non-infringement and summary judgment; the resulting claim-construction/prosecution-disclaimer dispute reached the Federal Circuit in Technology Properties Ltd. v. Huawei Technologies Co. (2017), and the follow-on appeal was affirmed without opinion in 2019.